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WO1998015489A1 - Dispositif de levage - Google Patents

Dispositif de levage Download PDF

Info

Publication number
WO1998015489A1
WO1998015489A1 PCT/FI1997/000591 FI9700591W WO9815489A1 WO 1998015489 A1 WO1998015489 A1 WO 1998015489A1 FI 9700591 W FI9700591 W FI 9700591W WO 9815489 A1 WO9815489 A1 WO 9815489A1
Authority
WO
WIPO (PCT)
Prior art keywords
lifting
lifting apparatus
drive shaft
frame
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/FI1997/000591
Other languages
English (en)
Inventor
Teuvo LEHTIMÄKI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Panelhandling Oy
Original Assignee
Sunds Defibrator Panelhandling Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunds Defibrator Panelhandling Oy filed Critical Sunds Defibrator Panelhandling Oy
Priority to CA002267215A priority Critical patent/CA2267215A1/fr
Priority to EP97942977A priority patent/EP1009707A1/fr
Publication of WO1998015489A1 publication Critical patent/WO1998015489A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/14—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising positively-acting mechanical devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the present invention relates to a lifting apparatus as defined in the preamble of claim 1.
  • a lifting apparatus with a raiseable and lowerable lifting frame is often used.
  • the lifting frame can be provided with a conveyor system or e.g. a roller track, which serves as a carrier to move panels or panel stacks.
  • lifting capacities of the order of e.g. 10000-20000 kg are needed.
  • the lifting apparatus applied in the feed station employs a hydraulic drive that raises and lowers a lifting frame using chain transmission.
  • Such a solution requires fairly complex and strong structures.
  • the hydraulic system is susceptible to leaks that may cause damage to the panels being handled. Adjusting the hydraulic systems is difficult and usually requires the use of proportional or servo techniques, leading to complex systems involving difficulties e.g. in respect of maintenance.
  • the object of the present invention is to achieve a new type of lifting apparatus that obviates the drawbacks of prior art.
  • the apparatus of the invention has numerous significant advantages.
  • the invention makes it possible to use a structural solution that is simpler than earlier solutions. Slots formed at the ends of lifting shafts permit easy and reliable attachment of lifting belts.
  • the use of lifting belts allows a very compact structure.
  • the drive system permits very accurate vertical positioning of the lifting frame, which can also be easily adjusted. Master and slave drives allow precise adjustment of several drive shafts even in a situation where the lifting frame has an uneven load.
  • Fig. 1 presents a lifting apparatus according to the invention in side view
  • Fig. 2 presents a lifting apparatus according to the invention in end view
  • Fig. 3 presents a lifting apparatus according to the invention in top view
  • Fig. 4 presents a detail of Fig. 1 as sectioned along line IV-IV,
  • Fig. 5 presents the end of a drive shaft in the lifting apparatus of the invention as sectioned along an axial plane
  • Fig. 6 presents the end of the drive shaft as sec- tioned along line VI-VI in Fig. 5.
  • Lifting apparatus especially for stacking or unstacking stations on panel handling lines, said apparatus comprising a raiseable and lowerable lifting frame 1 and means for raising and lowering the lifting frame.
  • the means for raising and lowering the lifting frame comprise at least one drive shaft 2, 3 and at least two lifting belts 4, 5, 6, 7, the first end of which is attached to the drive shaft 2, 3 while the second end is attached to the lifting frame 1 or arranged to pass via the lifting frame and attached to the frame structure of the lifting apparatus.
  • the lifting apparatus comprises a frame which has a pillar 8 at each corner as well as longitudinal supporting beams 9 and transverse supporting beams 10.
  • the drive shafts 2, 3 are disposed in the upper part of the frame in a transverse position between the pillars 8.
  • the drive shafts 2, 3 are supported by bearings placed at a distance from the end of the shaft 2, 3 so that the end of each shaft remains free.
  • the drive shafts 2, 3 are driven by a drive unit 11, preferably via a transmission 12.
  • the drive unit preferably consists of a conventional combination of a cage induction motor 11 and a pin transmission 12.
  • the lifting belts 4, 5, 6, 7 are placed on the free ends of the drive shafts 2, 3, so that, when the shafts 2, 3 are rotated, the belts are wound around the shafts, thus raising the lifting frame 1.
  • the lifting belt 4, 5, 6, 7 is unwound from the shaft and the lifting frame 1 is lowered.
  • the other end of the lifting belt is attached by means of fixing devices 13, 14, 15 to the lifting frame 1, or alternatively the lifting belt is arranged to pass via a diverting pulley or the like mounted on the lifting frame and attached by means of fixing devices to the frame of the lifting apparatus.
  • “Lifting belt'” refers to a lifting strap with at least one loop formed in it. Usually the lifting belt has a loop at each end.
  • the drive shaft 2, 3 is provided with a slot 16 or the like to permit a lifting belt 4 to be attached to the drive shaft (Fig. 5 and 6) .
  • the slot 16 forms a cleft at the end of the drive shaft. In the axial direction of the shaft, the slot 16 extends through a distance at least corresponding to the width of the lifting belt 4.
  • the loop at the end of the lifting belt 4 is placed on the shaft 2 so that part of the loop is in the slot 16.
  • the edges of the slot are preferably rounded.
  • the end of the drive shaft 2 is provided with a flange element 17 to prevent the lifting belt 4 from coming off the shaft 2 as it is wound up on the shaft.
  • the flange element 17 has a diameter substantially larger than that of the shaft 2.
  • the flange element comprises a counter element 18 designed to fit into the slot 16.
  • the counter element 18 prevents the shaft end segments 2', 2 ' ' on opposite sides of the slot 16 from being pressed together.
  • the shaft end is provided with a cen- tral mortise 19, in which case the counter element 18 of the flange 17 is a projection, sleeve or the like that fits into the mortise.
  • a cut-out 20 that fits onto the shaft end so that the flange element can be firmly fixed to the end of the drive shaft 2 by means of fixing elements 21, such as screws.
  • the flange element 17 keeps the shaft end segments 2', 2 ' ' and therefore the slot 16 in a straight position.
  • the lifting apparatus has two drive shafts 2, 3, each with two lifting belts 4, 5, 6, 7 arranged to raise and lower the lifting frame 1.
  • the lifting belts are arranged to raise the lifting frame 1 directly via fixing elements 13, 14, 15.
  • a solution can be used in which the lifting belt 4, 5, 6, 7 passes around one or more diverting pulleys (not shown) .
  • the drive shafts 2, 3 are driven by a drive unit 11 preferably provided with a frequency converter and a pulse sensor or equivalent. This allows a very accurate control of the drive shafts.
  • one of the drive units is a so-called master drive while the others are so-called slave drives.
  • the slave drives closely follow the master drive e.g. on the basis of readings obtained from the pulse sensor, with the result that the lifting frame 1 e.g. remains accurately in a straight position. This also makes it possible to avoid deviations of the lifting frame from the horizontal plane due to uneven load.
  • the lifting capacity of the lifting apparatus of the invention is e.g. 10000 kg
  • a " lifting belt of polyester textile material having a width of 100 mm and a thickness of 3.2 mm and a rated load of 4000 kg.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

Un dispositif de levage, destiné notamment aux postes d'empilement et de dépilement de lignes de manutention de panneaux, comprend un châssis de levage pouvant être monté et descendu (1), et un système permettant de monter et de descendre ledit châssis. Le système permettant de monter et de descendre le châssis de levage comprend au moins un arbre d'entraînement (2, 3) et au moins deux courroies de levage (4, 5, 6, 7). Celles-ci ont une première extrémité fixée sur l'arbre (2, 3) de façon que les courroies puissent s'enrouler autour de lui, et une seconde extrémité fixée sur le châssis de levage (1), ou bien disposée de façon à passer par une poulie de dérivation du châssis et fixée sur la structure châssis du dispositif de levage.
PCT/FI1997/000591 1996-10-04 1997-10-01 Dispositif de levage Ceased WO1998015489A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002267215A CA2267215A1 (fr) 1996-10-04 1997-10-01 Dispositif de levage
EP97942977A EP1009707A1 (fr) 1996-10-04 1997-10-01 Dispositif de levage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI963987A FI101285B (fi) 1996-10-04 1996-10-04 Nostolaitteisto
FI963987 1996-10-04

Publications (1)

Publication Number Publication Date
WO1998015489A1 true WO1998015489A1 (fr) 1998-04-16

Family

ID=8546808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1997/000591 Ceased WO1998015489A1 (fr) 1996-10-04 1997-10-01 Dispositif de levage

Country Status (4)

Country Link
EP (1) EP1009707A1 (fr)
CA (1) CA2267215A1 (fr)
FI (1) FI101285B (fr)
WO (1) WO1998015489A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026119A1 (fr) * 1999-02-06 2000-08-09 Gate Gourmet International Ag Dispositif de levage de charges, en particulier pour des conteneurs
DE20015061U1 (de) 2000-08-31 2001-02-22 MAHA Maschinenbau Haldenwang GmbH & Co. KG, 87490 Haldenwang Fahrzeug-Hebebühne
EP1559672A1 (fr) * 2004-01-15 2005-08-03 Fillmatic Polsterindustrie-Maschinen GmbH Dispositif d'empilage de charges, en particulier pour matelas
WO2007085243A3 (fr) * 2006-01-30 2007-11-01 Maha Gmbh & Co Kg Plate-forme de stationnement pour des véhicules à moteur
CN104030189A (zh) * 2014-06-16 2014-09-10 苏州经贸职业技术学院 一种变高度轻便型升降机
CN104261233A (zh) * 2014-08-28 2015-01-07 苏州美罗升降机械有限公司 一种升降机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202064A (en) * 1977-04-26 1980-05-13 Joergensen Gunnar I Unit for vertical and horizontal personal transport
GB2173163A (en) * 1985-03-20 1986-10-08 John Robert Goodyer Raising and lowering apparatus
WO1994011285A1 (fr) * 1992-11-19 1994-05-26 Oy Raumatic Ab Procede de charge d'une sous-pile de feuilles depuis une pile de feuilles et dispositif de mise en application du procede
DE19508492A1 (de) * 1995-03-09 1996-09-12 Bayerische Park Und Lagersyste Fördervorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202064A (en) * 1977-04-26 1980-05-13 Joergensen Gunnar I Unit for vertical and horizontal personal transport
GB2173163A (en) * 1985-03-20 1986-10-08 John Robert Goodyer Raising and lowering apparatus
WO1994011285A1 (fr) * 1992-11-19 1994-05-26 Oy Raumatic Ab Procede de charge d'une sous-pile de feuilles depuis une pile de feuilles et dispositif de mise en application du procede
DE19508492A1 (de) * 1995-03-09 1996-09-12 Bayerische Park Und Lagersyste Fördervorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 95, No. 9; & JP,A,07 144 891, DAIFUKU CO. LTD., (06-06-95). *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026119A1 (fr) * 1999-02-06 2000-08-09 Gate Gourmet International Ag Dispositif de levage de charges, en particulier pour des conteneurs
WO2000046141A1 (fr) * 1999-02-06 2000-08-10 Gate Gourmet International Ag Dispositif de levage
DE20015061U1 (de) 2000-08-31 2001-02-22 MAHA Maschinenbau Haldenwang GmbH & Co. KG, 87490 Haldenwang Fahrzeug-Hebebühne
US6863159B2 (en) 2000-08-31 2005-03-08 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Vehicle lifting platform
US7028811B2 (en) 2000-08-31 2006-04-18 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Vehicle lifting platform
EP1559672A1 (fr) * 2004-01-15 2005-08-03 Fillmatic Polsterindustrie-Maschinen GmbH Dispositif d'empilage de charges, en particulier pour matelas
WO2007085243A3 (fr) * 2006-01-30 2007-11-01 Maha Gmbh & Co Kg Plate-forme de stationnement pour des véhicules à moteur
US7997387B2 (en) 2006-01-30 2011-08-16 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Parking platform for motor vehicles
CN104030189A (zh) * 2014-06-16 2014-09-10 苏州经贸职业技术学院 一种变高度轻便型升降机
CN104030189B (zh) * 2014-06-16 2016-03-23 苏州经贸职业技术学院 一种变高度轻便型升降机
CN104261233A (zh) * 2014-08-28 2015-01-07 苏州美罗升降机械有限公司 一种升降机

Also Published As

Publication number Publication date
CA2267215A1 (fr) 1998-04-16
FI101285B1 (fi) 1998-05-29
EP1009707A1 (fr) 2000-06-21
FI101285B (fi) 1998-05-29
FI963987A0 (fi) 1996-10-04

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